bad turbo?
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bad turbo?
hi guys i have a 97 F-350 4x4 crew cab 5 speed manual ZF5,just put the 3 inch downpipe on it and into 4 inch straightpipe,i cannot hear the turbo whistle and does not spool up,I have another 97 same pickup same setup only difference is it has the auto tranny,this one you can definitely hear the turbo.The 97 with the 5 speed i just put a used engine in it,could it be a bad turbo?vac leak?any ideas?
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i pulled the intake and yes the wheel is spinning so any other ideas?starving for fuel?the truck just has no power.
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i am pretty sure the O-ring is there,there could be an exhaust leak from the up-pipe when you first start it there is a little puff of smoke from around the turbo, up pipe area.Relearn me on checking fuel pressure,the schrader valve on the side of the fuel bowl?Whats acceptable fuel pressure if everything is good?
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I have a '96 with auto tranny and I've never heard a turbo whistle, not once since new in 1996.
I eventually put a Tymar big air cleaner and a 3-inch round downpipe, no whistle.
I know it is operating normally because I have good power, and read up to about 20 pounds on the boost gauge. My fuel pressure is at a nominal 50 pounds even when towing under heavy load.
I think some turbos like to whistle, and others don't. I have never considered a whistle as a marker for good turbo operation.
I eventually put a Tymar big air cleaner and a 3-inch round downpipe, no whistle.
I know it is operating normally because I have good power, and read up to about 20 pounds on the boost gauge. My fuel pressure is at a nominal 50 pounds even when towing under heavy load.
I think some turbos like to whistle, and others don't. I have never considered a whistle as a marker for good turbo operation.
Fleet Owner
Joined: Aug 2004
Posts: 20,419
Likes: 197
From: AZ
I have a '96 with auto tranny and I've never heard a turbo whistle, not once since new in 1996.
I eventually put a Tymar big air cleaner and a 3-inch round downpipe, no whistle.
I know it is operating normally because I have good power, and read up to about 20 pounds on the boost gauge. My fuel pressure is at a nominal 50 pounds even when towing under heavy load.
I think some turbos like to whistle, and others don't. I have never considered a whistle as a marker for good turbo operation.
I eventually put a Tymar big air cleaner and a 3-inch round downpipe, no whistle.
I know it is operating normally because I have good power, and read up to about 20 pounds on the boost gauge. My fuel pressure is at a nominal 50 pounds even when towing under heavy load.
I think some turbos like to whistle, and others don't. I have never considered a whistle as a marker for good turbo operation.